Home / 190,780.18-263,263.48-105,890.56

Finding the Fourth Proportional to 190,780.18, 263,263.48 and 105,890.56

Calculator

Solution

The fourth proportional to 190,780.18, 263,263.48 and 105,890.56 is: 146,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,780.18 : 263,263.48 = 105,890.56 : x
  2. Step 2: Convert to fraction form
    190,780.18/263,263.48 = 105,890.56/x
  3. Step 3: Cross multiply
    190,780.18x = 263,263.48 × 105,890.56
  4. Step 4: Simplify right side
    190,780.18x = 27,877,117,324.75
  5. Step 5: Solve for x
    x = 27,877,117,324.75/190,780.18
  6. Step 6: Final answer
    x = 146,121.66

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.